Discover our high-quality tension irons and mandrels for garage and industrial doors in our online shop. These professional tools are specially designed to precisely tension the torsion springs and ensure safe weight balancing. With optimal tension of the springs, the tension irons and mandrels ensure smooth operation of your doors without the risk of uncontrolled falling. Rely on the quality and safety of our tension irons and mandrels for reliable assembly and flawless functionality of your garage and industrial doors.